Escapement for type-writers and recording-machines.



' J', HABER.

ESUPEHBNT F011 TYPE WRITERS AND BCORDING HAGHINES.

APPLIUATION HLBD'I'EB. 1, 1909.

1,005,784 Y Patented' oet, 1o, 1911.

milvf I I TED s'jrA-{EATENT OFFICE.

ensure Meer., or Portas' B Lurr, MISSOURI, AssIGNon 'ro DALToN ADDINGMACHINE contraint, or sr. LoUIs, MIssoURI, A CORPORATION 4 or MISSOURI.

nfsCAri-:MENTH non TYPE-WRITERS AND RECORDING-MACHINES.

Be it known that IJ'JosEPH Rham, aA citi- 'zen lof the United States,residing at Poplar flu', Missouri, have invented a new and usefulEscapement for 'Type-.Writers and Recording-'Machinea of which thefollowing is a specification..

This invention relates to escapements for tewrlting and other recordingmachines w erein a lateral step by step movement is imparted to thepaper carriage during the operation of the machine.

In a companion application filed January 18, 1909, Serial No.472,823,1have described the `construction and operation of an improvedescapement including the escapement shaft and wheel and adjustable pawlsmovable across the path of the escapement wheel and adjustable vwithrespect to each other te effect speed or regular escapement 'on theiroperation. j

j The, present invention relates to mechanism to be embodied in amachine in combination with the mechanism just referred to,

and includes an improved mechanism for controllin the operation of theescapement in its di erent adjustments, and an improved device foroperating said controlling means.V

In the accompanying 'drawings Figure 1 is 4a perspective view yof theescapement embodying my present invention. Fi 2 is a perspective View ofthe controlling shaft Vdetached from the remaining. portion of the-mechanism. Fig. 3 is a perspective view of the tension regulatingdevice whereby the Vtension of the restoring spring is regulated. `Figs.4, and 4daresectional views of the controllingA shaft in differentpositlons.

Fig.v 7 is a sectional view illustrating the arrangements of one of thestop devices whereby movement of the rocker carrying the escapementpawls is limited.

The hanger or support 1 is constructed substantially as described in mycompanion application, havingbearings for an escape-A ment shaft 2 toone end of which a pinion 3 attached and .arranged for. engagement withthev rack on the paper carriage in the well understood manner'. Theopposite end of the shaft 3 supports a housing 4 and the escapementwheel 5, the latter being mounted loosely on the shaft and interlockedwith the housing 4 against rotation in one direction. The*lower portionof the hanger' l Specification of Letters Patent. Patented Oct 10,1911..

l Applicationpaleu February i, 1909.' serial No. 475,403.

'i'tmay concern:`

pawl 7 actuated in one direction by spring 8 and whose movement in thatdirection is limited'by an offset 9 on the rocker. A pawl 10 1s alsocarried by the rocker 6, and lmay be moved and locked at either sideofthe pawl 7 as required to adjustthe two pawls for regular or speedescapement as desired and as fully described in `my companionapplication above referred to. The pawl 10 is pivotally supported andmay be adjusted and held at either side of the pawl 7. A locking pin 10ais movably mounted in a hole in an arm on the rocker 6 and maybe'wit'hdrawn so as to permit adjustment of the pawl 10 from voneposition to another. The in 10l1 extends against the side of the pawl Oeffectively to lock or hold said pawl in either adjustment, whether forspeed or regular eseapement. By oscillation of the rocker 6 thepawls 7and 10 are moved alternately into engagement with the wheel 5, therebypermitting the shaft 2 to rotate intermittently and the paper carriagecontrolled thereby to move laterally. Movement of the rocker 6 in onedirection is the hanger 1, and is provided near its lowerl end withA aplane'surface 14.- At the lower end of the hanger 1 an abutment or stoppin 15 is carried and held against the shaft 13 by a spring 16. Said pinis in position to be engaged by a projection 17 on'the rocker when thelatter is oscillated by downward movement of the arm 11, and thereby tostop further movement of the rocker. Above the rocker support a pin 18is sup'- ported in a manner similar to the pin 15, and is arranged as astop and abutment for the rocker in its idle or rest position. Oppositethe end of the pin 18 on the shaft'13 a plane surface 19 is formed atright angles to the plane surface 14, andl a plane surface 2O is formedon the shaft on the side oppo- .site from said surface 14. A thumb nut21 on the upper end of the shaft 13 and above ment for regular or speedcscapement. A

pointer 22 attached to the shaft indicates in I rand arrangement of theparts embodyingy which adjustment the escapement is located.

Adjustment of the pawls 7 and 10 for regular and speed eseapement iseffected in the same manner as described in my companion applicationabove referred to. By. turning the shaft 13 until the plane surface 19is opposite the pin 18, the pawl 10 having been previously adjusted,speed escapement will be. effected. The spring 12 will t draw the rocker(3 to hold the pawl 10 in engagement with the eseapement wheel, and

`during the downward movement of the arm 11 said pawl 10 will move outof engagement with the wheel, and put the pawl 7 in position to beengaged by the advancing tooth on the wheel. In the adjustment shown inthe drawing, which is for regular escapement, the shaft 13 presents around surface to the pin 18 and holds the pawl 7 in engagement' with theescapement wheel so that on downward movement of the arm 11 the pawl 7is swung out of engagement with the escapemcnt wheel and the pawl 10prevents operation of the escapement until return movement takes place.Adjustment of the shaft 13 to present the plane surface 19 to the xpin1S also presents the round surface of the shaft to the pin 15, so thatthe rocker G moves thereon the same distance at each operation, whetheradjusted for regular or speed escapement.

One end of the spring 12 is attached to the lower arm of the bell cranklever 23 pivoted to the under side of the hanger or support 1. A bellcrank lever 24 is pivoted beside the lever 23 and has an arm 25extending under the upper arm of lsaid lever 23, and an extension 2Gbearing against the shaft 13. IVhen the shaft 13 is adjusted to presenta round surface to the pin 18, the extension 26 rests againstthe planesurface 20. When, however, the shaft 13 is turned to bring the planesurface 19 against the pin 18, a round surface of theushaft is presenteda ainst the extension 26 as will be obvious reference to Fig. 4, therebyholding the tension of the s ring' 12 constant or unchanged so that therocker G will be under the same tension at all times, eX- cept whenvoluntarily changed. A screw 27 operates through the upper arm of thelever 23 and against the arm of the lever 24, so that by operation ofsaid screw the two levers may be adjusted with respect to each other. Bymoving the lower arm of the lever 23 in one direction the spring 12 willbe extended and its tension increased, and moving it in the oppositedirection it will be relaxed. The screw 27 projects through a hole 28 inthe upper portion of the hanger 1, affording means for regulating thetension of the spring 1,2 from the top of the machine. Y

I am aware that there may be modifications and alterations in theconstruction not restrict myself to identical feature l' construction orarrangement, but

vlVhat I claim and desire to secure b v Letters Patent is:

1. In an escapement mechanism, the combination vwith a pawl carrierT andpawls carried thereby, and means for adjusting said pawls for regular orspeed escapement as desired, of stops for said pawl carrier. and asingle element for adjusting said stops to correspond with theadjustment of the pawls, substantially as specified.

2. In an escapement mechanism, the combination with a pawl carrier,pawls carried thereby, and means for adjusting said pawl.- for regularor speed escapement as desired, of stops for limiting the movement ofthe pawl carrier in both directions, and a single element operable toadjust said stops to cor-l respond with the adjustment of the pawls,substantially as specified. l l

3. In an escapement mechanism, the combination with a pawl carrier,pawls carried thereby and means'for adjusting said pawls for speed orregular escapement as desired, of independently movable stops forlimiting the movement of said pawl carriers in both directions, and anoperating element for adjusting said stops to correspond with theadjustment of the pawls for speed or regular escapement, substantiallyas specified.

t. In an escapement, the combination of'a.

pawl carrier, pawls carried thereby, and means for adjusting said pawlsfor regular or speed escapement as desired, of in dependently movablestops arranged in the path of movement of the pawl carriers to limit themovement of said carrier in both directions, and a manually operabledevice for adjusting both the said stops at one operation, substantiallyas specied.

5. In an escapement, the combination with pawl carrier, pawls carriedthereby, and means for adjustingj said pawls for speed or regularescapement as desired, of independently movable stops arranged to limitmovement of the pawl carrier, in both directions, manually operablemeans to adjust both of said stops at a single operation, and anindicator controlled by said means indicating the adjustment of theescapement, substan-v stops for 'limiting movement of the pawl lngmovement of the pawl carrier, a' spring actuating the carrier inonedirection, and a single element vfor adjusting said stops in differentpositions and holding the spring i at substantially the same tension.

tially uniform 9. In an escapement mechanism, the combina-tion with apawl carrier and the escapement pawls carried thereby, of stops limitingthe movement of the paWl carrier in both directions, a spring actuatingthe pawl carrier in onedirection, and an element operable vto change theposition of said stops and hold the spring at substantension,substantially as specied.

10. In an escapcm t\ the combination with a pawl carrier, ostopslimiting movement of said carrier in both directions, and means foradjusting al1/of said stops in different positions at a single oyeration as required for speed and regular gescapement.

l1. In an escapement, the F*combinationl with a pawl carrier, of stopslimiting movement of said pawl carrier in both directions, a deviceoperable to adjust said stops in -difl'erent positions, a springactuating said pawl carrier, and means operated by said 35 deviceeffectively to regulate the tension off said spring, substantially asspecified.y

In testimony whereof, I hereunto aiiix my signature to thisspecification this 13th day of January, 1909, `in the presence 'of two40 witnesses.

i JOSEPH HABER; [La] Witnesses I CHARLES Proms,

JOHN' E.`GREVE.

